From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: 2.6.19-rc3 system freezes when ripping with cdparanoia at ioctl(SG_IO) Date: Sat, 11 Nov 2006 10:46:42 +0000 Message-ID: <20061111104642.GA3356@infradead.org> References: <4554777B.7050708@torque.net> <508312.85189.qm@web31812.mail.mud.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <508312.85189.qm@web31812.mail.mud.yahoo.com> Sender: linux-scsi-owner@vger.kernel.org To: Luben Tuikov Cc: dougg@torque.net, Tejun Heo , Brice Goglin , Jens Axboe , Gregor Jasny , Linux Kernel , Jeff Garzik , linux-ide@vger.kernel.org, monty@xiph.org, linux-scsi@vger.kernel.org List-Id: linux-ide@vger.kernel.org On Fri, Nov 10, 2006 at 12:08:15PM -0800, Luben Tuikov wrote: > P.S. I'd love to see SG_DXFER_TO_FROM_DEV completely ripped out > of sg.c, for obvious reasons. Can you not duplicate the resid "fix" > it provides into "FROM_DEV" -- do apps really rely on it? At the beginning of this thread it was mentioned cdparanio uses it. But in general we can't just rip out userland interfaces, we pretend to have a stable userspace abi (and except for the big sysfs mess that actually comes very close to the truth). What we should do is to document very well what SG_DXFER_TO_FROM_DEV is doing and that odd name that's been chosen for it. I'll prepare a patch for that.